Online Instruments
One keyboard, eight instruments. Click, tap or use your keyboard — everything is synthesized live in your browser.
Play with your keyboard: white keys A S D F G H J K, black keys W E T Y U. Hold to sustain, or turn on Sustain to let notes ring.
Free online instruments you can play in your browser
The Ajenza Online Instruments player is a free virtual keyboard that plays entirely in your web browser — no app, no sign-up and no downloads. Every note is synthesized live with the Web Audio API, so you can play by clicking the keys, tapping them on a phone, or using your computer keyboard. Switch between grand piano, electric piano, organ, guitar, strings, flute, synth lead and marimba, shift the keyboard up or down octaves, turn on sustain to let chords ring, and adjust the volume while you play.
Is the online instruments player free?
Yes — it is completely free, with no sign-up, no download and no watermark.
Which instruments can I play?
Eight voices: grand piano, electric piano, organ, guitar, strings, flute, synth lead and marimba. Tap the instrument buttons to switch at any time.
How do I play with my computer keyboard?
White keys are A S D F G H J K and black keys are W E T Y U. Press and hold to sustain a note; release to stop it. Use the octave buttons to move higher or lower.
Does it work on a phone?
Yes. The keyboard is responsive, so you can tap the keys and switch instruments on any phone or tablet.
Do I need to install anything?
No. Sound is generated in the browser with the Web Audio API — nothing to install and no permissions required.
More free music tools: Online Piano · Drum Machine · Song Remixer